论文部分内容阅读
以鸡粪和谷壳为原料,采用人工好氧堆肥技术,研究堆肥过程中养分的变化规律。结果显示,堆肥过程中pH值呈先下降,后升高再下降的变化趋势;总氮、总钾含量呈阶段性变化;氨态氮一直下降;有效磷在堆肥前期上升而后期下降;种子发芽指数呈上升趋势;电导率先升高后降低。添加谷壳后,堆肥升温快、水分蒸发快;鸡粪和谷壳堆制30 d已基本腐熟,以鸡粪∶谷壳=2∶1的堆制效果最好。
With chicken manure and chaff as raw materials, the artificial aerobic composting technology was used to study the changes of nutrients in composting process. The results showed that during composting, pH value decreased first, then increased and then decreased; total nitrogen and total potassium contents changed in a stepwise manner; ammonia nitrogen decreased continuously; available phosphorus rose at the early stage of composting and decreased later; Index showed an upward trend; conductivity increased first and then decreased. After the addition of chaff, compost warming fast, water evaporation fast; chicken manure and chaff heap 30 d has been basically decomposed to chicken manure: chaff = 2: 1 heap best.